package com.itheima.health.service.impl;

import com.itheima.health.constant.MessageConstant;
import com.itheima.health.entity.Result;
import com.itheima.health.mapper.MemberMapper;
import com.itheima.health.mapper.OrderMapper;
import com.itheima.health.mapper.OrderSettingMapper;
import com.itheima.health.pojo.Member;
import com.itheima.health.pojo.Order;
import com.itheima.health.pojo.OrderSetting;
import com.itheima.health.service.OrderService;
import com.itheima.health.utils.DateUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Map;

@Service
@Transactional
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderSettingMapper orderSettingMapper;
    @Autowired
    private MemberMapper memberMapper;

    /**
     * 体检预约
     *
     * @param map
     * @return
     */
    @Override
    public Result order(Map map) throws Exception {
        //检查当前日期是否进行了预约设置
        String orderDate = (String) map.get("orderDate");
        Date date = DateUtils.parseString2Date(orderDate);
        OrderSetting orderSetting = orderSettingMapper.findByOrderDate(date);
        if (orderSetting == null) {
            return new Result(false,
                    MessageConstant.SELECTED_DATE_CANNOT_ORDER);
        }
        //检查预约日期是否预约已满
        int number = orderSetting.getNumber();//可预约人数
        int reservations = orderSetting.getReservations();//已预约人数
        if (reservations >= number) {
            //预约已满，不能预约
            return new Result(false, MessageConstant.ORDER_FULL);
        }
        //检查当前用户是否为会员，根据手机号判断
        String telephone = (String) map.get("telephone");
        Member member = memberMapper.findByTelephone(telephone);
        //防止重复预约
        if (member != null) {
            Integer memberId = member.getId();
            int setmealId = Integer.parseInt((String) map.get("setmealId"));
            Order order = new Order(memberId, date, null, null, setmealId);
            List<Order> list = orderMapper.findByCondition(order);
            if (list != null && list.size() > 0) {
                //已经完成了预约，不能重复预约
                return new Result(false, MessageConstant.HAS_ORDERED);
            }
        }
        //可以预约，设置预约人数加一
        orderSetting.setReservations(orderSetting.getReservations() + 1);
        orderSettingMapper.editReservationsByOrderDate(orderSetting);
        if (member == null) {
            //当前用户不是会员，需要添加到会员表
            member = new Member();
            member.setName((String) map.get("name"));
            member.setPhoneNumber(telephone);
            member.setIdCard((String) map.get("idCard"));
            member.setSex((String) map.get("sex"));
            member.setRegTime(new Date());
            memberMapper.add(member);
        }
        //保存预约信息到预约表
        Order order = new Order(member.getId(),
                date,
                (String) map.get("orderType"),
                Order.ORDERSTATUS_NO,
                Integer.parseInt((String)
                        map.get("setmealId")));
        orderMapper.add(order);
        return new Result(true, MessageConstant.ORDER_SUCCESS, order.getId());
    }

    @Override
    public Map findById(Integer id) throws Exception {
        Map map = orderMapper.findById4Detail(id);
        if (map != null) {
//处理日期格式
            Date orderDate = (Date) map.get("orderDate");
            map.put("orderDate", DateUtils.parseDate2String(orderDate));
        }
        return map;

    }
}
